21302768

21,302,768 is an even composite number composed of three prime numbers multiplied together.

What does the number 21302768 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 40 divisors.

21302768 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21302768:

2⁴ × 17³ × 271

(2 × 2 × 2 × 2 × 17 × 17 × 17 × 271)

See below for interesting mathematical facts about the number 21302768 from the Numbermatics database.

Names of 21302768

Cardinal: 21302768 can be written as Twenty-one million, three hundred two thousand, seven hundred sixty-eight.

Scientific notation

Scientific notation: 2.1302768 × 10⁷

Factors of 21302768

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 8
Sum of prime factors: 290

Divisors of 21302768

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 8 16 17 34 68 136 271 272 289 542 578 1084 1156 2168 2312 4336 4607 4624 4913 9214 9826 18428 19652 36856 39304 73712 78319 78608 156638 313276 626552 1253104 1331423 2662846 5325692 10651384 21302768
Sum of all divisors σ(n): 44015040
Sum of proper divisors (its aliquot sum) s(n): 22712272
21302768 is an abundant number, because the sum of its proper divisors (22712272) is greater than itself. Its abundance is 1409504

Bases of 21302768

Binary: 1010001010000110111110000₂
Hexadecimal: 0x1450DF0
Base-36: COLBK

Squares and roots of 21302768

21302768 squared (21302768²) is 453807924461824
21302768 cubed (21302768³) is 9667364931371761528832
The square root of 21302768 is 4615.4921731057
The cube root of 21302768 is 277.2119913161

Scales and comparisons

How big is 21302768?

21,302,768 seconds is equal to 35 weeks, 1 day, 13 hours, 26 minutes, 8 seconds.
To count from 1 to 21,302,768 would take you about five days!

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 21302768 cubic inches would be around 23.1 feet tall.

Recreational maths with 21302768

21302768 backwards is 86720312
The number of decimal digits it has is: 8
The sum of 21302768's digits is 29
More coming soon!

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The information we have on file for 21302768 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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